Doomsday Preppers returns with people primed for the end of the world as they know it. This character driven survivalist series follows ordinary people who go to extraordinary means to prepare for a natural, man-made or space-born threat to the planet. Unique in their beliefs, motivations and strategies, preppers will go to whatever lengths they can to make sure they are prepared for any of life's uncertainties. This season sees preppers testing the limits of ingenuity as they develop extreme doomsday survival machines, high-tech shelters and specialized escape routes. With customized features, super-secret locations and home-spun engineering, these extreme Armageddon defense systems are ready for anything.With big personalities and amazing hoarding skills, we add a scientific eye to see how likely it is the event will take place, and if they are in fact prepared enough if and when it strikes.